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Chemical Engineering :: Chemical Engineering Thermodynamics

  1. Mollier diagram is a plot of

  2. A.
    temperature vs. enthalpy
    B.
    temperature vs. enthalpy
    C.
    entropy vs. enthalpy
    D.
    temperature vs. internal energy

  3. is the mathematical expression for

  4. A.
    CV
    B.
    enthalpy change
    C.
    free energy change
    D.
    none of these

  5. The activity of an ideal gas is numerically __________ its pressure.

  6. A.
    more than
    B.
    less than
    C.
    equal to
    D.
    data insufficient, can't be predicted

  7. Which of the following diagrams does not represent an Otto cycle ?

  8. A.
    B.
    C.
    D.
    none of these

  9. Specific heat of a gas for a reversible adiabatic process is

  10. A.
    negative
    B.
    zero
    C.
    infinity
    D.
    none of these

  11. When a gas in a vessel expands, its internal energy decreases. The process involved is

  12. A.
    reversible
    B.
    irreversible
    C.
    isothermal
    D.
    adiabatic

  13. A system is said to be isopiestic, if there is no __________ change.

  14. A.
    temperature
    B.
    pressure
    C.
    volume
    D.
    none of these

  15. In a turbine, the fluid expands almost

  16. A.
    isothermally
    B.
    isobarically
    C.
    adiabatically
    D.
    none of these

  17. The unity of Planck's constant 'h' in the equation, E = hv is

  18. A.
    J/s
    B.
    J.S
    C.
    J/kmol
    D.
    kmol/J

  19. Specific/molar Gibbs free energy for a pure substance does not change during

  20. A.
    sublimation
    B.
    vaporisation
    C.
    melting
    D.
    either (a), (b) or (c)